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Mandalika Mathematics and Educations Journal
Published by Universitas Mataram
ISSN : 27158292     EISSN : 27151190     DOI : 10.29303/jm
Core Subject : Education,
Mathematics
Mandalika Mathematics and Education Journal adalah Jurnal Matematika dan Pendidikan Matematika yang dikelola oleh Program Studi S1 Pendidikan Matematika FKIP Universitas Mataram. Fokus dan ruang lingkup dari jurnal ini adalah artikel ilmiah baik berupa hasil penelitian, review artikel maupun kajian pustaka khusus bidang Matematika dan Pendidikan Matematika.
Arjuna Subject : Matematika - Matematika (Lain-Lain)
Articles 18 Documents
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Search results for , issue "Vol 7 No 1 (2025): Edisi Maret" : 18 Documents clear
EKSPLORASI MODEL PEMBELAJARAN BERDIFERENSIASI DALAM MATEMATIKA Moh. Supratman; I M. Ardana; I G. Putu Suharta; I W. Puja Astawa
Mandalika Mathematics and Educations Journal Vol 7 No 1 (2025): Edisi Maret
Publisher : FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jm.v7i1.8719

Abstract

This study is a systematic literature review (SLR) study that explores the application and effectiveness of differentiated learning models in mathematics learning. Differentiated learning involves tailoring content, processes, products, and learning environments to meet students' individual needs, with the goal of improving students' concept understanding, problem-solving skills, creativity, motivation, and engagement. This study identifies various differentiation approaches used in mathematics learning, such as subject-based learning, the use of educational technology, and flexibility in evaluation. The results show that differentiated learning is effective in improving learning outcomes, but its implementation is faced with challenges such as time constraints, teacher workload, variations in student abilities, and lack of training. The proposed solutions include increasing teacher training, more flexible time allocation, and developing varied and inclusive resources. The review also provides practical steps for the application of differentiated learning in mathematics classrooms, and recommends further research that integrates differentiated learning with open-ended problem-solving to improve mathematical creative thinking.
Pengembangan Media Powerpoint Interaktif Untuk Meningkatkan Kemampuan Komunikasi Matematis Siswa Kelas VIII SMP Negeri 2 Terara Tahun Ajaran 2024/2025 Dinisa Putri, Baiq Elda; Azmi, Syahrul; Primajati, Gilang; Baidowi, Baidowi
Mandalika Mathematics and Educations Journal Vol 7 No 1 (2025): Edisi Maret
Publisher : FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jm.v7i1.8720

Abstract

This research aims to develop interactive powerpoint media based on the classpoint application that was feasible, practical and effective to improve the mathematical communication skills of class VIII students at SMP Negeri 2 Terara on the Pythagorean theorem material. This development research uses a 4D model, namely Define, Design, Development and Disseminate. Data in this research are obtained from the results of instrument validation by experts to measure the suitability of the media, the results of teacher and student response questionnaires to measure the practicality of the media, and the results of students' mathematical communication ability tests to measure the effectiveness of the media. The sample in the research are 28 students in class VIII D. Interactive powerpoint media is tested to be very feasible with a validation score of 0,86 and obtained a practicality percentage of 90% and 96.5% with a very practical category. The average student pretest and posttest scores are 70.75 and 88.32, the t-test results showing that there is  a difference in the average between the students' pretest and posttest results. The level of media effectiveness is categorized as very effective with an effect size score of 2.0001. Based on the research results, it can be concluded that the development of interactive powerpoint media is feasible, practical and effective for improving the mathematical communication skills of class VIII students at SMPN 2 Terara for the 2024/2025 academic year.
pengaruh Pengaruh Kemampuan Numerik dan Kemampuan Spasial Terhadap Kemampuan Menyelesaikan Soal Matematika Siswa Kelas IX SMP Negeri 4 Gerung Tahun Ajaran 2024/2025 Sartika, Luwy; Nurul Hikmah; Ulfa Lu’luilmaknun; Syahrul Azmi
Mandalika Mathematics and Educations Journal Vol 7 No 1 (2025): Edisi Maret
Publisher : FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jm.v7i1.8734

Abstract

This research is motivated by students’ difficulties in solving mathematical problems, which are caused by their low numerical and spatial abilities. These difficulties are caused by the low numerical and spatial abilities. Numerical ability is related to understanding and performing basic arithmetic operations, while spatial ability involves understanding relationship, visualization, and spatial orientation. Therefore, the aim of this study is to determine the influence of numerical and spatial abilities on the mathematical problem solving skills of IX grade students at SMP Negeri 4 Gerung in the 2024/2025 academic year. This research is a quantitative study using the ex post facto method. The population consists of all IX grade students, totaling 173, with a purposive sampling technique used to select 36 students as the sample. Data collection was conducted through numerical ability test, spatial ability test, and mathematics problem solving test. D ata analysis techniques included descriptive statistical analysis and inferential statistical analysis. The results of the study indicate a significant influences of numerical and spatial abilities on mathematical problem solving skill. Simultaneously, these two variables contributed 64,7% to students’ problem solving abilities. Thus, improving numerical and spatial abilities can be an effective strategy for enhancing students’ mathematical problem solving skills.
Pengaruh model pembelajaran kooperatif tipe team games tournament (TGT) terhadap kemampuan komunikasi matematis kelas VIII SMPN Masbagik Tahun Ajaran 2024/2025 Hijriati, Awwalus sanatil; Arjudin; Wulandari, Nourma Pramestie; Baidowi
Mandalika Mathematics and Educations Journal Vol 7 No 1 (2025): Edisi Maret
Publisher : FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jm.v7i1.8738

Abstract

This study aims to determine the effect of the Team Game Tournament (TGT) type cooperative learning model on the mathematical communication skills of 8th-grade students at SMPN 6 Masbagik. The research employed a quantitative approach using a true experimental method with a posttest only control group design. The population consisted of all 8th-grade students at SMPN 6 Masbagik in the 2024/2025 academic year, totaling 76 students. The sample was selected using a cluster random sampling technique, with two classes selected from three, namely classes VIIIA and VIIIB, each consisting of 26 students. The two classes received different treatments: class VIIIA as the experimental class using the TGT learning model, and class VIIIB as the control class using conventional learning. Data were collected through a mathematical communication skills test and observation. Data analysis included normality and homogeneity tests, hypothesis testing using the Independent Sample t-Test, and an effect size test. The results showed that the average posttest score in the experimental class was 69.5, while the control class scored 55. The t-test result showed a t-count of 4.434 > t-table 2.008, indicating a significant difference. The effect size result of 1.09 falls into the large category. In conclusion, the TGT model significantly affects students' mathematical communication skills.
Pengaruh Kemampuan Spasial Dan Komunikasi Matematis Terhadap Hasil Belajar Matematika Siswa Eka Ayu Rasta, Ni Putu Virgi; Hikmah, Nurul; Salsabila, Nilza Humaira; Prayitno, Sudi
Mandalika Mathematics and Educations Journal Vol 7 No 1 (2025): Edisi Maret
Publisher : FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jm.v7i1.8746

Abstract

The purpose of this study was to determine the effect of spatial intelligence and mathematical communication on the mathematics learning outcomes of class IX students of SMPN 5 Mataram in the 2024/2025 Academic Year. This type of research is quantitative with the ex post facto method. The population in this study were all class IX students of SMPN 5 Mataram in the 2024/2025 academic year with a total of 249 students. The sampling technique used probability sampling so that 1 class was selected, namely class IX B with a total of 31 students. The method of data collection was through giving tests of spatial ability, mathematical communication and mathematics learning outcomes with the material of similarity and congruence, surface area and volume of various curved and flat sided geometric shapes. The data analysis technique used in this study was descriptive statistical analysis and inferential statistical analysis. Based on the results of the inferential statistical analysis calculation, the t count value> t table was obtained, namely 6.238> 2.045 so that there was an effect of spatial ability on mathematics learning outcomes. The calculated t value > t table is 2.525 > 2.045 so that there is an influence of mathematical communication on mathematics learning outcomes. The Rxy (R) value is 0.836, sig. value 0.000 < 0.05 and 32.446 > 3.33. There is also an influence of variables X1 and X2 simultaneously on variable Y of 69.9%, which means that there is a positive influence between spatial ability and mathematical communication on students' mathematics learning outcomes with a strong relationship level. So, it can be concluded that there is an influence of spatial ability and mathematical communication on the mathematics learning outcomes of grade IX students of SMPN 5 Mataram in the 2024/2025 academic year.
Efektivitas Efektivitas Media Pembelajaran Augmented Reality Materi Bangun Ruang Sisi Datar di SMPN 1 Gunungsari Hasanah, Wirda; Harry Soeprianto; Baidowi; sripatmi
Mandalika Mathematics and Educations Journal Vol 7 No 1 (2025): Edisi Maret
Publisher : FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jm.v7i1.8773

Abstract

This study aims to determine the effectiveness of Augmented Reality (AR)-based learning media on students' mathematics learning outcomes of flat-sided space building material. This research uses a quasi-experiment method with a non-equivalent control group design. The subjects of this study were VII grade students of SMP Negeri 1 Gunungsari as many as two classes, namely the experimental class and the control class. Where the experimental class is given Augmented Reality-based learning media while the control class is given website-based learning media. This study was conducted for 5 meetings, starting with giving a pretest, followed by learning by implementing learning media for 3 meetings in each class and giving a questionnaire of learning interest for the experimental class. The last meeting was held posttest to determine student learning outcomes. Data analysis used independent sample t-test and N-Gain Mean analysis. The results showed that AR media was significantly effective in improving students' math learning outcomes (P < 0.005), with the N-Gain category of the experimental class classified as high and effective, while the control class was categorized as less effective. In addition, the use of AR media also increases students' interest in learning, with a very good category.
Analisis Kesalahan Mahasiswa Pendidikan Matematika Dalam Menyelesaikan Soal SUBGRUP Berdasarkan Teori Newman Samosir, Martha Indah; Sitorus, Grace Elicia; Sibarani, Khoirunnisa; Manurung, Sri Lestari
Mandalika Mathematics and Educations Journal Vol 7 No 1 (2025): Edisi Maret
Publisher : FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jm.v7i1.8788

Abstract

This research aims to examine the types of errors students make when solving problems using Newman's procedure. A qualitative descriptive approach was employed, involving 14 students selected through purposive sampling. Data were collected through observations, written tests, and documentation, then analyzed using Newman's error analysis framework. The data analysis techniques include data reduction, data presentation, and conclusion drawing. The findings indicate that reading errors were the least common (14.28%), while process skills errors occurred most frequently (42.85%). Other types of errors included comprehension errors (21.42%), transformation errors (28.57%), and encoding errors (35.71%). These results suggest that many students struggle with processing information and systematically applying problem-solving skills. Therefore, instructional strategies should focus on strengthening conceptual understanding and providing more practice in translating problems into mathematical representations.
HUBUNGAN KUALITAS TIDUR TERHADAP KONSENTRASI BELAJAR SISWA KELAS VII-3 DI SMPN 4 MEDAN Sitorus, Grace Elicia; Samosir, Martha Indah; Sagala, Prihatin Ningsih; Sibarani, Khoirunnisa; Dhuha, Nadira Kaylana; Munthe, Tiolina Maria
Mandalika Mathematics and Educations Journal Vol 7 No 1 (2025): Edisi Maret
Publisher : FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jm.v7i1.8790

Abstract

Learning concentration plays a crucial role in students' academic success and can be influenced by various factors, including sleep quality. This study examines the relationship between sleep quality and mathematics learning concentration among seventh-grade students (VII-3) at SMPN 4 Medan. A descriptive correlational method with a quantitative approach was used. Data were collected using a sleep quality questionnaire based on the Pittsburgh Sleep Quality Index (PSQI) and a learning concentration questionnaire. Statistical analysis included the Chi-Square test, Pearson and Spearman correlation, and Odds Ratio estimation. Results showed that 54.5% of students had poor sleep quality, while 45.5% had good sleep quality. Regarding concentration, 54.5% of students exhibited good concentration, while 45.5% struggled to focus. Statistical tests confirmed a significant relationship between sleep quality and learning concentration (p = 0.007), with a moderate positive correlation (r = 0.467). The Odds Ratio indicated that students with good sleep quality were eight times more likely to have high concentration. These findings emphasize the importance of proper sleep habits in improving students' focus and academic performance.

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